Heraclenin is a member of the class of compounds known as psoralens. Psoralens are organic compounds containing a psoralen moiety, which consists of a furan fused to a chromenone to for 7H-furo[3,2-g]chromen-7-one. Heraclenin is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Heraclenin can be found in carrot, lemon, and wild carrot, which makes heraclenin a potential biomarker for the consumption of these food products.